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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "InjectedBundleNodeHandle.h"
     28 
     29 #include "WebFrame.h"
     30 #include "WebFrameLoaderClient.h"
     31 #include <JavaScriptCore/APICast.h>
     32 #include <WebCore/Document.h>
     33 #include <WebCore/Frame.h>
     34 #include <WebCore/HTMLFrameElement.h>
     35 #include <WebCore/HTMLIFrameElement.h>
     36 #include <WebCore/HTMLInputElement.h>
     37 #include <WebCore/HTMLNames.h>
     38 #include <WebCore/HTMLTableCellElement.h>
     39 #include <WebCore/HTMLTextAreaElement.h>
     40 #include <WebCore/IntRect.h>
     41 #include <WebCore/JSNode.h>
     42 #include <WebCore/Node.h>
     43 #include <wtf/HashMap.h>
     44 #include <wtf/text/WTFString.h>
     45 
     46 using namespace WebCore;
     47 using namespace HTMLNames;
     48 
     49 namespace WebKit {
     50 
     51 typedef HashMap<Node*, InjectedBundleNodeHandle*> DOMHandleCache;
     52 
     53 static DOMHandleCache& domHandleCache()
     54 {
     55     DEFINE_STATIC_LOCAL(DOMHandleCache, cache, ());
     56     return cache;
     57 }
     58 
     59 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::getOrCreate(JSContextRef, JSObjectRef object)
     60 {
     61     Node* node = toNode(toJS(object));
     62     return getOrCreate(node);
     63 }
     64 
     65 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::getOrCreate(Node* node)
     66 {
     67     if (!node)
     68         return 0;
     69 
     70     std::pair<DOMHandleCache::iterator, bool> result = domHandleCache().add(node, 0);
     71     if (!result.second)
     72         return PassRefPtr<InjectedBundleNodeHandle>(result.first->second);
     73 
     74     RefPtr<InjectedBundleNodeHandle> nodeHandle = InjectedBundleNodeHandle::create(node);
     75     result.first->second = nodeHandle.get();
     76     return nodeHandle.release();
     77 }
     78 
     79 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::create(Node* node)
     80 {
     81     return adoptRef(new InjectedBundleNodeHandle(node));
     82 }
     83 
     84 InjectedBundleNodeHandle::InjectedBundleNodeHandle(Node* node)
     85     : m_node(node)
     86 {
     87 }
     88 
     89 InjectedBundleNodeHandle::~InjectedBundleNodeHandle()
     90 {
     91     domHandleCache().remove(m_node.get());
     92 }
     93 
     94 Node* InjectedBundleNodeHandle::coreNode() const
     95 {
     96     return m_node.get();
     97 }
     98 
     99 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::document()
    100 {
    101     return getOrCreate(m_node->document());
    102 }
    103 
    104 // Additional DOM Operations
    105 // Note: These should only be operations that are not exposed to JavaScript.
    106 
    107 IntRect InjectedBundleNodeHandle::elementBounds() const
    108 {
    109     if (!m_node->isElementNode())
    110         return IntRect();
    111 
    112     return static_cast<Element*>(m_node.get())->boundsInWindowSpace();
    113 }
    114 
    115 IntRect InjectedBundleNodeHandle::renderRect(bool* isReplaced) const
    116 {
    117     return m_node.get()->renderRect(isReplaced);
    118 }
    119 
    120 void InjectedBundleNodeHandle::setHTMLInputElementValueForUser(const String& value)
    121 {
    122     if (!m_node->hasTagName(inputTag))
    123         return;
    124 
    125     static_cast<HTMLInputElement*>(m_node.get())->setValueForUser(value);
    126 }
    127 
    128 bool InjectedBundleNodeHandle::isHTMLInputElementAutofilled() const
    129 {
    130     if (!m_node->hasTagName(inputTag))
    131         return false;
    132 
    133     return static_cast<HTMLInputElement*>(m_node.get())->isAutofilled();
    134 }
    135 
    136 void InjectedBundleNodeHandle::setHTMLInputElementAutofilled(bool filled)
    137 {
    138     if (!m_node->hasTagName(inputTag))
    139         return;
    140 
    141     static_cast<HTMLInputElement*>(m_node.get())->setAutofilled(filled);
    142 }
    143 
    144 bool InjectedBundleNodeHandle::htmlInputElementLastChangeWasUserEdit()
    145 {
    146     if (!m_node->hasTagName(inputTag))
    147         return false;
    148 
    149     return static_cast<HTMLInputElement*>(m_node.get())->lastChangeWasUserEdit();
    150 }
    151 
    152 bool InjectedBundleNodeHandle::htmlTextAreaElementLastChangeWasUserEdit()
    153 {
    154     if (!m_node->hasTagName(textareaTag))
    155         return false;
    156 
    157     return static_cast<HTMLTextAreaElement*>(m_node.get())->lastChangeWasUserEdit();
    158 }
    159 
    160 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::htmlTableCellElementCellAbove()
    161 {
    162     if (!m_node->hasTagName(tdTag))
    163         return 0;
    164 
    165     return getOrCreate(static_cast<HTMLTableCellElement*>(m_node.get())->cellAbove());
    166 }
    167 
    168 PassRefPtr<InjectedBundleNodeHandle> InjectedBundleNodeHandle::elementShadowRoot()
    169 {
    170     if (!m_node->isElementNode())
    171         return 0;
    172 
    173     return getOrCreate(static_cast<Element*>(m_node.get())->shadowRoot());
    174 }
    175 
    176 PassRefPtr<WebFrame> InjectedBundleNodeHandle::documentFrame()
    177 {
    178     if (!m_node->isDocumentNode())
    179         return 0;
    180 
    181     Frame* frame = static_cast<Document*>(m_node.get())->frame();
    182     if (!frame)
    183         return 0;
    184 
    185     return static_cast<WebFrameLoaderClient*>(frame->loader()->client())->webFrame();
    186 }
    187 
    188 PassRefPtr<WebFrame> InjectedBundleNodeHandle::htmlFrameElementContentFrame()
    189 {
    190     if (!m_node->hasTagName(frameTag))
    191         return 0;
    192 
    193     Frame* frame = static_cast<HTMLFrameElement*>(m_node.get())->contentFrame();
    194     if (!frame)
    195         return 0;
    196 
    197     return static_cast<WebFrameLoaderClient*>(frame->loader()->client())->webFrame();
    198 }
    199 
    200 PassRefPtr<WebFrame> InjectedBundleNodeHandle::htmlIFrameElementContentFrame()
    201 {
    202     if (!m_node->hasTagName(iframeTag))
    203         return 0;
    204 
    205     Frame* frame = static_cast<HTMLIFrameElement*>(m_node.get())->contentFrame();
    206     if (!frame)
    207         return 0;
    208 
    209     return static_cast<WebFrameLoaderClient*>(frame->loader()->client())->webFrame();
    210 }
    211 
    212 } // namespace WebKit
    213